ICD-10 Code L98.411 – Non-pressure chronic ulcer of buttock limited to breakdown of skin (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L98.411 – Non-pressure chronic ulcer of buttock limited to breakdown of skin
What it is
This code identifies a chronic, non-pressure ulcer on the buttock that involves only breakdown of the skin. Use it when documentation shows a persistent skin ulcer, not a pressure injury.
Clinical signs
Typical findings include an open sore on the buttock with superficial skin loss and no deeper tissue involvement. Clinical features vary; refer to documentation for chronicity and ulcer depth.
When to use this code
Use L98.411 when the record clearly states a chronic non-pressure ulcer of the buttock limited to skin breakdown. It fits outpatient and inpatient documentation that specifies the site and superficial extent. If the note only says “wound” or “sore,” check documentation before coding.
Do not use for
Do not use this code for pressure ulcers, deeper ulcers with fat or muscle involvement, or ulcers at other body sites. If the documentation is unclear, check documentation.
Coding tip
Verify both the non-pressure cause and the “limited to breakdown of skin” depth before assigning L98.411.